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Ruby-throated Hummingbird

Archilochus colubris

Hundreds of kinds of hummingbirds nest in the American tropics, and more than a dozen in the western U.S., but east of the Great Plains there is only the Ruby-throat. There it is fairly common in summer in open woods and gardens. Hovering in front of a flower to sip nectar, it beats its wings more than 50 times per second. Impressive migrants despite their small size, some Ruby-throats may travel from Canada to Costa Rica.

Conservation status

Thought to have declined in some regions in recent years, but surveys show no distinct downward trend.

Gardens, wood edges. Summers in a variety of semi-open habitats, including open woods, clearings and edges in forest, gardens, city parks. Winters mostly in rather open or dry tropical scrub, not usually in rain forest. Migrants may pause in any open habitat with flowers.

Hundreds of kinds of hummingbirds nest in the American tropics, and more than a dozen in the western U.S., but east of the Great Plains there is only the Ruby-throat. There it is fairly common in summer in open woods and gardens. Hovering in front of a flower to sip nectar, it beats its wings more than 50 times per second. Impressive migrants despite their small size, some Ruby-throats may travel from Canada to Costa Rica.

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Feeding Behavior

At flowers, usually feeds while hovering, extending its bill and long tongue deep into the center of the flower. At feeders, may either hover or perch. To catch small insects, may fly out and take them in midair, or hover to pluck them from foliage. Sometimes takes spiders (or trapped insects) from spider webs.

Eggs

2. White. Incubation is by female only, 11-16 days. Young: Female feeds the young. Nest stretches as young grow. Age of young at first flight about 20-22 days. Usually 1-2 broods per year, sometimes 3. Female may begin building second nest while still feeding young in the first.

Young

Female feeds the young. Nest stretches as young grow. Age of young at first flight about 20-22 days. Usually 1-2 broods per year, sometimes 3. Female may begin building second nest while still feeding young in the first.

Diet

Mostly nectar and insects. Takes nectar from flowers, and will feed on tiny insects as well. Favors tubular flowers such as those of trumpet vine. Will also feed on sugar-water mixtures in hummingbird feeders.

Nesting

In courtship display, male flies back and forth in front of female in wide U-shaped "pendulum" arc, making a whirring sound on each dive. Also buzzes back and forth in short passes in front of perched female. Nest site is in a tree or large shrub, 5-50 feet above the ground, usually 10-20 feet. Placed on horizontal branch or one that slopes down from tree, usually well surrounded by leafy cover. Nest (built by female) is a compact cup of grasses, plant fibers, spider webs, lined with plant down. The outside is camouflaged with lichens and dead leaves.

Migration

Almost all leave North America in fall, wintering from Mexico to Costa Rica or Panama. Some may cross Gulf of Mexico but many go around, concentrating along Texas coast. In spring, males move north earlier than females.

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Migration

Almost all leave North America in fall, wintering from Mexico to Costa Rica or Panama. Some may cross Gulf of Mexico but many go around, concentrating along Texas coast. In spring, males move north earlier than females.

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